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Indexed by:期刊论文

Date of Publication:2011-08-01

Journal:INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS

Included Journals:SCIE

Volume:50

Issue:8

Page Number:2552-2559

ISSN No.:0020-7748

Key Words:Insulator state; Superfluid state; Ground-state entanglement; Coupled cavity

Abstract:We study two coupled cavities, each of which contains two two-level atoms. We identify the regions of Mott-insulator and superfluid states. Ground-state entanglement of two atoms in one cavity has been investigated. The result show that quantum entanglement of two atoms within one cavity can also characterize quantum phase transition.